S
M
T
W
T
F
S
26
88°
73°
27
89°
73°
28
90°
74°
29
90°
72°
30
88°
73°
31
89°
74°
1
89°
73°
2
88°
72°
3
91°
73°
4
90°
74°
5
92°
73°
6
92°
74°
7
90°
73°
8
88°
73°
9
88°
72°
10
89°
72°
11
91°
74°
12
92°
76°
13
93°
77°
14
91°
75°
15
91°
74°
16
92°
76°
17
92°
73°
18
91°
74°
19
91°
73°
20
89°
74°
21
88°
73°
22
89°
74°
23
89°
72°
24
90°
73°
25
88°
74°
26
90°
73°
27
92°
74°
28
Hist. Avg.
89°
73°
29
Hist. Avg.
89°
73°
30
Hist. Avg.
89°
73°
31
Hist. Avg.
89°
73°
1
Hist. Avg.
89°
73°
2
Hist. Avg.
89°
72°
3
Hist. Avg.
89°
72°
4
Hist. Avg.
88°
72°
5
Hist. Avg.
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 72° and 77°. The average high for August is 90° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
